import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: ${USER}
 * Date: ${YEAR}-${MONTH}-${DAY}
 * Time: ${TIME}
 */

//scanner学习
public class Main {
    public static void main(String[] args) {
        //用户键盘输入 灵活赋值到变量
        //1.第一步 导入 import java.util.*;
        //2.创建Scanner对象 用户键盘录入的入口
        Scanner input = new Scanner(System.in);
        //3.从键盘输入数据
        int now = input.nextInt();
    }
}